2.5L Hydration Backpack with Water Bladder Hydration Packs for Outdoor Cycling Hiking Climbing Green

Specification: 
Fabric: oxford cloth
Total Size: approx. 45(H) × 20(W) × 10(T) cm
Bladder Capacity: 2.5L
Weight: 600g

Features:

Small compartment for keys, phone, snacks, etc.
Main compartment for umbrella, book, clothes, etc.
Adjustable shoulder straps ,chest belt, waist belt.
Usage: outdoor climbing, hiking, biking, military applications, etc.
A switch on/off bite valve, convenient for control the flow of water.
Equipped with a tube with a bite valve to drink, so you don't need to hold it to drink.